Attempts to upload files I never had

Hi! I have a problem with people trying to upload pornographic files I have NEVER had on my computer, how does this happen? And how do I stop it? I do not know how these people are connecting to my computer, as it would not even come up in a search of this nature.Help please!

how do u tell when somebody is uploading ?? i am a computer newbie ?? and new to limewire !!! it is very difficult all this 4 me but im patiently trying my best !!

Go to View in the upper control section and find Show/Hide.
check MONITOR. A new tab will show on your Limewire screen. Now you can see what they are uploading from your files. Only files that you either searched your computer for or those in your SHARED folder will be filed. If you think a file is being shared that you do not THINK you have, do a SEARCH for that file. IF you SHARE your computer with someone else in your household you NEVER really know where they might have BEEN.

I don't share my computer and these are files that have never been on my computer, so I don't understand how these people are connecting to me, as I said in my first post, the names of the files indicate pornographic content and are in no way even similar to any files I have or are sharing, it always says in the monitor window 'file not found'....well of course, because I never had it! So why does this register? I have tried blocking the address of the people, and I wonder if maybe it is a temporary glitch?